MSM82C84A-2JS datasheet(4/18 Pages) OKI

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¡ Semiconductor

MSM82C84A-2RS/GS/JS

AC CHARACTERISTICS

(1)

Parameter

Symbol

Min.

Max.

Unit

EFI "H" Pulse Width

EFI "L" Pulse Width

Crystal Oscillator Frequency

Set up Time of RDY 1 or RDY 2 to

CLK Falling Edge (Active)

EFI Cycle Time

Conditions

Set up Time of RDY 1 or RDY 2 to

CLK Rising Edge (Active)

Set up Time of RDY 1 or RDY 2 to

CLK Falling Edge (Inactive)

Hold Time of RDY 1 or RDY 2 to

CLK Falling Edge

Set up Time of ASYNC to CLK

Falling Edge

Hold Time of ASYNC to

CLK Falling Edge

Set up Time of AEN 1 (AEN 2) to

RDY 1 (RDY 2) Rising Edge

Hold Time of AEN 1 (AEN 2) to

CLK Falling Edge

Set up Time of CSYNC to EFI

Rising Edge

Hold Time of CSYNC to EFI

Rising Edge

CSYNC Pulse Width

Set up Time of RES to CLK Falling

Edge

Hold Time of RES to CLK Falling

Edge

Input Rising Edge Time

Input Falling Edge Time

tEHEL

tELEH

tELEL

tR1VCL

tR1VCH

tR1VCL

tCLR1X

tAYVCL

tCLAYX

tA1R1V

tCLA1X

tYHEH

tYHYL

tI1HCL

tCLI1H

tILIH

tIHIL

tEHYL

—

2 ¥ tELEL

—

MHz

90% to 90%

10% to 10%

—

ASYNC

= High

ASYNC

= Low

—

Output Load

Capacitance

CLK output

CL = 100 pF

Others 30 pF

(VCC = 5 V ± 10%, Ta = –40 to 85°C)

Note: Parameters where timing has not been indicated in the above table are measured at

VL = 1.5 V and VH = 1.5 V for both inputs and outputs.

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